Letter G

Ground A connection to the earth or to a conductive object such as an equipment chassis.


Ground Fault
A condition in which current takes an unintentional path to
ground. Ground faults can endanger people and damage
equipment. For this reason, some circuits are equipped with a
ground fault circuit interrupter (GFCI).


Ground Fault Circuit Interrupter (GFCI) A device designed to interrupt current in a circuit if a ground fault is sensed. If a GFCI is installed near the receptacles it
protects, overcurrent protection is required separately. A GFCI
circuit breaker combines protection for ground faults, overloads,
and short circuits in one device.